Latch



R. G. MooRE Aug. 6, I 929.

LATGH Filed May 8, 1926 INVETOR.

ATTORNEY Ray/720126! G' Moore Patented Aug. 6, 1929.

UNITED STATES PATENr OFFICE.

RAYMOND G. MOORE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR T0 THE BASSICK iCOMPANY, OF BRIDGEPOR'I', CONNECTICUT.

LATCH.

Application filed May 8,

The present invention relates to an improved automobile door latch, andhas for an object to provide a latch of this Character, having an insideand an outside Operating handle, and in which the outside lhandle is'adapted to be (logged against operation by manipulation of the insidehandle. The latch is especially adapted for use upon doors of closedcars, being applied to all but one of the doors, and which latter isadapted to be locked from the outside.

T particularly propose to provide an inside handle roll-back adapted tooperate directly upon the latch bolt, and an outside handle roll-backadapted to operate upon the roll-back through an intermediate memberdirectly lengaging the latcl1"`b0lt at a point substantially coincident,transversely of the bolt, with-the point of engavement of the insidehandle roll-back, and f urther to provide means on the inside handleroll-back adapted through manipulation of the latter to preventactuation of said intermediate member and the outside handle roll-back.

Another object is to provide a latch bolt adapted tohave free retractingmovem'ent in the locked relation of the outside handle, either bymanipulation of the inside handle or by pressure applied against thenose end of the bolt, and further to provide a latch construction inwhich the handle roll-backs may be located at any desired points in thelatch casing, that is, they may be placed above or below the bolt and atany desired points longitudinally, without changing their maincombinative relation, ormaterially altering the design of the parts,thereby adapting the main parts of the latch to use upon various cardoors, in which the positions of the 'handles are differently arranged.With the above and other objects in view, an embodiment of the inventionis shown in the accompanying drawings, and this embodiment will behereinafter more fully described with reference thereto, and theinvention will be finally pointed out in the claims.

In the drawings:

Fig. 1 is a plan elevation of an automobile door latch, according to thepresent embodiment of the invention, and showing the same in its normaloperative relation;

Fig. 2 is a Vertical sectional view, taken along the line 2-2 of F ig.1;

opening 12, and near its inner end is 1926. Serial NO. 107,544.

Fig. 4 is a plan elevation, with vthe cover plate removed, and showingthe parts in the relation in which operation of the outside handle isprevented; and

Fig. 5 is a detail sectional view, taken along the line 5 5 of Fig. 4:.

Similar reference characters indicate corresponding parts throughout theseveral figures of the drawings.

Referring to the drawings, the embodiment of the invention shown thereincomprises a sheet metal frame or base plate 10 having a face flange llbent therefrom at one end, Within which a rectangular opening 12 isprovided, a fiange lip portion 13 of the metal cut from said openingbeing bent inwardly in parallel spaced relation to he plate 10 to form abearing for the latch olt.

The latch bolt 14 is slidably engaged at its relatively thick noseportion 15 in the rovided With a slot 16 engaged with a fixed guideroller 17 seeured to the plate 10, a coil spring 18 engaged with theinner end of said bolt normally pressing it to its projected position.The bolt is retained against displacement by means of a flat cover plate19, fianged at itsl upper and lower edges, as at 20, and secured to theplate 10 by lugs 21 inserted through slots 22 in said plate 10 and bentover upon the surface thereof.

The main portion of the bolt within the casing may preferably be formedof flat sheet metal, while the nose portion may be a forging rvetedthereto.

At the rearward end vof the bolt there is provided an upwardlyprojecting Vertical extension 23 engaged by the inner handle roll-back24, the hub 25 of which has bearng in apertures formed in the base andcover plates 10 and 19.

The outside handle roll-back 26 has its hub 27 rotatably engaged inapertures formed in the plates 10 and 19 adjacent the flange 11, and isadapted to actuate the bolt through an intermediate slide member 28slidably engaged upon the upper surface of the bolt and adapted to bearat its rearward end against the Vertical forward surface of the boltextension 23, while at its forward =cnd it is extended upwardly andforwardly to engage against the roll-back 26. A bolt bridging portion 29of the slide member' extends transversely across the bolt, being flangedas at 30 and 31 to engage the upper and lower edges of the bolt andthereby retain the slide member in sliding contact With the bolt. Aspring 32 coiled about a stud 33 has one end engaged against a lug34`formed from the casing, While its other end bears upon a pin 35provided on the slide member and normally presses the latter forwardlyagainst the outside handle rollback, so that it is retained in itsnormal relation during operation of the inside handle, or retraction ofthe bolt through pressure applied at its nose end.

A slot 86 and a pressed out portion 37 in the cover plate 19 permitretraction movement of the bolt nose and the slide member, the latterhaving its bridging portion 29 engagedin said portion 37. The doggingmeans for the outside handle roll-backveonsists of a horizontallIyprojecting rearward extension 38 provi ed at the upper portion of theslide member 28, and a bloeking portion 39 formed upon the inside handleroll-back, this portion being normally out of the path of said extension38 during retraction movement of the slide member, as show=n in dottedlines in Fig. 1, but adapted upon a partial rotation of said insidehandle roll-back in reverse direction to be interposed in the path ofmovement of said extension t-o thereby prevent or block operation of theslide member and the outside handle roll-baek. I

In order to yieldably retain the inside handle roll-back in itsnormaland reversely moved positions there are provided vspaced recesses 40 and41 pressed into the casing and adapted to be engaged, in the respectivemovd positions of the roll-back, by a boss 42 provided on the undersurface of the rollback, and engaging said recesses under the action ofa radial spring plate 43 provided on the hub of the roll back betweenits upper surface and the cover plate 19.

The operation is as follows:

As shown in Fig. 1, in which the parts are in their normal unlockedrelation, the latch bolt is retracted from the inside by the insidehandle, the roll-back 24 being rotated in counter-clockwise directionand bearing directly upon the extension 23 of the bolt. It is retractedfrom the outside by the outside handle, the roll-back 2G being rotatedin clockwise direction, and through movement of the slidemember'retracting the bolt.

In order to dog the outside handle rollback against operation, theinside handle roll-back is moved through a partial rotation in oppositedirection to its normal retracting movement, (Fig. 4) bringing the'blocking portion 39 into the direct path of the extension portion 88 ofthe slide member,

and thereby blocking the latter and the outside handle roll-back againstoperation.

The normal operative relation of the outside handle is restored uponmoving the inside handle in retracting direction, the initial movementbringing the blocking portion 39 out of the path of the extension 38,and the continued movement causing retraction of the bolt.

Under all conditions the latch bolt is free to be retractedindependently of the handles, that is, by pressure directly applied atits nose, as in slamming the door close.

I have illustrated and described a preferred and satisfaetory embodimentof the invention, but it will be obvious that changes may be madetherein, within the spirit and scope thereof, as defined in the appendedelaims.

Having thus described my invention, What I claim and desire to secure byLetters Patent is l. In a latch, a latch bolt, retracting means for saidbolt including inside and outside manually operable means, a retractingmember interposed between said outside retracting means and the bolt andmovable along a line in parallel relation With the longitudinal axis ofsaid bolt, and means associated With said inside retracting meansadapted upon manipulation of the latter in non-bolt-retracting directionto prevent movement of said retracting member.

2. In a latch, a latch bolt, retracting means for said bolt includinginside and outside manually operable means, said inside retracting meansengaging directly with said bolt, a retracting member interposed betweensaid outside retracting means and the bolt and movable along a line inparallel relation with the longitudinal axis of said bolt and meansassociated With said inside retracting means adapted upon manipulationof the latter in non-bolt-retracting direction to prevent movement ofsaid retracting member.

3. In a latch, a latch bolt, retracting means for said bolt includinginside and outside manually operable means, a retracting memberinterposed between said outside retracting means and the bolt andmovable along a line in parallel relation with the longitudinal axis ofsaid bolt, and means associated with said inside retracting meansadapted upon ,manipulation of the latter in non-bolt-retractingdirection to prevent movement of said retracting member, said bolt beingfree to have retracting movement independently of said retracting memberby retracting pressure directly applied thereto.

4. In a latch, a latch bolt, retracting means for said bolt includinginside and outside manually operable means, a retracting memberinterposed between said outside retracting means and the bolt andmovable along a line in parallel relation With the longitudinal axis ofthe bolt and adapted to permiti manually operable means, a retractingmein-'i ber interposed between said outside retracting means and saidbolt, and movable along a line in 'parallel relation with 'thelongitudinal axis of said bolt, said inside retracting means includingmeans 'operatively related to said retracting member, whereby movementof said inside retracting means in one direction is adapted to retractthe bolt and in the other dir btion is adapted to prevent operation ofsaid retracting member.

6. lln a latcli, a latch bolt, retracting means for said bolt includinginside and outside manual'ly operable means, aretracting memberinterposed betweensaid outside retracting means and said bolt andmovable along adline in parallel relation with the longitudinal axis ofsaid bolt, said inside retracting means including means operativelyrelated to said retracting' member, Whereby move'ment of said insideretracting means in one direction is adapted to retract the bolt and inreverse direction isadapted to prevent operation of said retractingmember, and means for yieldably retaining said inside retractmg means inits normal and reversely moved positions respectlvely..

7. ,lln a latch, a latch bolt, retracting meansfor said bolt including-inside and outside manually operable means, a retracting memberinterposed between said outside retracting means and said bolt, saidinside retracting means and said retracting member engaging said boltalong substantially the same transverse lineof said bolt, said insideretracting means including' i means operatively related to saidretractingl member, Whereby movement of said inside retracting means inone direction is adapted to retract the bolt and in reverse direction isadapted to prevent operation of said retracting member. l

, 8. In a latch, a latch bolt, retracting means for said bolt includinginside and outside manually operable means, a retracting memberinterposed between said outside retracting` means and said bolt andmovable along 'a line in parallel relation with the longitudinal axis ofsaidbolt, said inside retracting means including an abutment portionnormally out of the path of movement of said retractinpr member andadapted upon movement of said inside retracting means innonbolt-retracting direction to be interposed in the path of .movementof said retracting member'whereby its operation and operation -of i theoutside retracting means are pre- Vented.

Signed at Bridgeport, in the county of Fairfield, and State ofConnecticut, this 4th day of May, 1926.

RAYMOND G. MOORE.

